I would like to buy the teleconverter. I'm new to the site; please tell me how to proceed.
Thanks, Bill Koehler w.koehler@tcu.edu

Many, many thanks to all of you who responded.

I am trying to understand why a number of point and shoot cameras have technology and lenses that offer wide angle/far reaching telephoto capabilities. e.g. Sony RX10 IV 24-600mm, Nikon P900 24-2000mm and Lumix DC-FZ80 20-1200mm yet no one lens on a DSLR can come close to these numbers. Furthermore, many of the point and shoot camera lenses are brighter than telephoto lenses for DSLR cameras.

I know there must be trade offs. I just don't a grasp of the technology and optical parameters to make a decision.
Thanks for your help.